Spring Rest 模板：主机名“localhost”与对等方提供的证书主题不匹配

Question

我像这样使用 RestTemplate 配置：

private RestTemplate createRestTemplate() throws Exception {
        final String username = "admin";
        final String password = "admin";
        final String proxyUrl = "localhost";
        final int port = 443;

        CredentialsProvider credsProvider = new BasicCredentialsProvider();
        credsProvider.setCredentials(new AuthScope(proxyUrl, port),
                new UsernamePasswordCredentials(username, password));

        HttpHost host = new HttpHost(proxyUrl, port, "https");

        HttpClientBuilder clientBuilder = HttpClientBuilder.create();

        clientBuilder.setProxy(host).setDefaultCredentialsProvider(credsProvider).disableCookieManagement();

        HttpClient httpClient = clientBuilder.build();
        HttpComponentsClientHttpRequestFactory factory = new HttpComponentsClientHttpRequestFactory();
        factory.setHttpClient(httpClient);

        return new RestTemplate(factory);
    }

这就是我的方法的工作原理：

public String receiveMessage(String message) {
        try {
            restTemplate = createRestTemplate();
            ObjectMapper mapper = new ObjectMapper();
            Class1 class1 = null;
            String json2 = "";

            class1= mapper.readValue(message, Class1.class);

            Class1 class2 = restTemplate.getForObject(URL_SERVICE_1 + "/class1/findByName?name=" + class1.getName(),
                    Class1.class);
            System.out.println("Server 1 : " + message);
            json2 = mapper.writeValueAsString(class2);

            return "Error - " + json2;
        } catch (Exception e) {
            // TODO Auto-generated catch block
            return e.getMessage();
        }

    }

URL_SERVICE_1 包含https://localhost

当我尝试调用函数 GET 时，我总是得到这样的返回：

I/O error on GET request for "https://localhost/class1/findByName?name=20-1P": Host name 'localhost' does not match the certificate subject provided by the peer (CN=*.webku-cool.com, OU=EssentialSSL Wildcard, OU=Domain Control Validated); nested exception is javax.net.ssl.SSLPeerUnverifiedException: Host name 'localhost' does not match the certificate subject provided by the peer (CN=*.webku-cool.com, OU=EssentialSSL Wildcard, OU=Domain Control Validated)

我不知道使用 https 的 restTemplate 的正确设置。我已经尝试了 23 次关于 SSL 设置的参考，并得到了同样的错误。

1. Reference

2. Reference

3. Reference

Answer 1

由于已接受的答案已弃用代码，这对我很有帮助：

SSLContextBuilder sslcontext = new SSLContextBuilder();
            sslcontext.loadTrustMaterial(null, new TrustSelfSignedStrategy());
            httpclient = HttpAsyncClients.custom().setSSLContext(sslcontext.build()).setSSLHostnameVerifier(NoopHostnameVerifier.INSTANCE)
                    .build();

Answer 2

此问题的正确解决方案是通过将 localhost 添加到主题列表来更正 ssl 证书。但是，如果您的意图是为了开发目的而绕过 ssl，则需要定义一个连接工厂，它始终将主机名验证的结果返回为 true。

SSLClientHttpRequestFactory

public class SSLClientHttpRequestFactory extends SimpleClientHttpRequestFactory {

    @Override
    protected void prepareConnection(HttpURLConnection connection, String httpMethod) {
        try {
            if (!(connection instanceof HttpsURLConnection)) {
                throw new RuntimeException("An instance of HttpsURLConnection is expected");
            }

            HttpsURLConnection httpsConnection = (HttpsURLConnection) connection;

            TrustManager[] trustAllCerts = new TrustManager[] { new X509TrustManager() {
                public java.security.cert.X509Certificate[] getAcceptedIssuers() {
                    return null;
                }

                public void checkClientTrusted(X509Certificate[] certs, String authType) {
                }

                public void checkServerTrusted(X509Certificate[] certs, String authType) {
                }

            } };
            SSLContext sslContext = SSLContext.getInstance("TLS");
            sslContext.init(null, trustAllCerts, new java.security.SecureRandom());
            httpsConnection.setSSLSocketFactory(new MyCustomSSLSocketFactory(sslContext.getSocketFactory()));

            httpsConnection.setHostnameVerifier(new HostnameVerifier() {
                public boolean verify(String hostname, SSLSession session) {
                    return true;
                }
            });

            super.prepareConnection(httpsConnection, httpMethod);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    /**
     * We need to invoke sslSocket.setEnabledProtocols(new String[] {"SSLv3"});
     * see
     * http://www.oracle.com/technetwork/java/javase/documentation/cve-2014-3566
     * -2342133.html (Java 8 section)
     */
    private static class MyCustomSSLSocketFactory extends SSLSocketFactory {

        private final SSLSocketFactory delegate;

        public MyCustomSSLSocketFactory(SSLSocketFactory delegate) {
            this.delegate = delegate;
        }

        @Override
        public String[] getDefaultCipherSuites() {
            return delegate.getDefaultCipherSuites();
        }

        @Override
        public String[] getSupportedCipherSuites() {
            return delegate.getSupportedCipherSuites();
        }

        @Override
        public Socket createSocket(final Socket socket, final String host, final int port, final boolean autoClose)
                throws IOException {
            final Socket underlyingSocket = delegate.createSocket(socket, host, port, autoClose);
            return overrideProtocol(underlyingSocket);
        }

        @Override
        public Socket createSocket(final String host, final int port) throws IOException {
            final Socket underlyingSocket = delegate.createSocket(host, port);
            return overrideProtocol(underlyingSocket);
        }

        @Override
        public Socket createSocket(final String host, final int port, final InetAddress localAddress,
                final int localPort) throws IOException {
            final Socket underlyingSocket = delegate.createSocket(host, port, localAddress, localPort);
            return overrideProtocol(underlyingSocket);
        }

        @Override
        public Socket createSocket(final InetAddress host, final int port) throws IOException {
            final Socket underlyingSocket = delegate.createSocket(host, port);
            return overrideProtocol(underlyingSocket);
        }

        @Override
        public Socket createSocket(final InetAddress host, final int port, final InetAddress localAddress,
                final int localPort) throws IOException {
            final Socket underlyingSocket = delegate.createSocket(host, port, localAddress, localPort);
            return overrideProtocol(underlyingSocket);
        }

        private Socket overrideProtocol(final Socket socket) {
            if (!(socket instanceof SSLSocket)) {
                throw new RuntimeException("An instance of SSLSocket is expected");
            }
            ((SSLSocket) socket).setEnabledProtocols(new String[] { "TLSv1" });
            return socket;
        }
    }
}

并使用上面提到的连接工厂作为 RestTemplate 的构造函数参数。覆盖主机名验证以始终返回 true 的部分代码如下：

httpsConnection.setHostnameVerifier(new HostnameVerifier() {
                public boolean verify(String hostname, SSLSession session) {
                    return true;
                }
            });

编码愉快！

Answer 3

这是我如何让它工作的： 1.这个bean忽略SSL检查 2. 它也忽略证书不匹配

@Bean
    public RestTemplate restTemplate()
            throws KeyStoreException, NoSuchAlgorithmException, KeyManagementException {
        TrustStrategy acceptingTrustStrategy = (X509Certificate[] chain, String authType) -> true;

        SSLContextBuilder sslcontext = new SSLContextBuilder();
        sslcontext.loadTrustMaterial(null, new TrustSelfSignedStrategy());

        SSLContext sslContext = org.apache.http.ssl.SSLContexts.custom()
                                                               .loadTrustMaterial(null, acceptingTrustStrategy)
                                                               .build();

        SSLConnectionSocketFactory csf = new SSLConnectionSocketFactory(sslContext);

        CloseableHttpClient httpClient = HttpClients.custom().setSSLContext(sslcontext.build()).setSSLHostnameVerifier(
                NoopHostnameVerifier.INSTANCE)
                                                    .build();

        HttpComponentsClientHttpRequestFactory requestFactory =
                new HttpComponentsClientHttpRequestFactory();

        requestFactory.setHttpClient(httpClient);
        RestTemplate restTemplate = new RestTemplate(requestFactory);
        return restTemplate;
    }

Answer 4

在网上尝试了很多不同的选项后，这个选项对我有用...非常感谢...

SSLContextBuilder sslcontext = new SSLContextBuilder();
            sslcontext.loadTrustMaterial(null, new TrustSelfSignedStrategy());
HttpClient httpClient = HttpAsyncClients.custom().setSSLContext(sslcontext.build()).setSSLHostnameVerifier(NoopHostnameVerifier.INSTANCE)
                .build();